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aeaad0b0 DE |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Daniel Elstner <daniel.kitta@gmail.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "protocol.h" | |
5874e88d DE |
21 | #include "libsigrok.h" |
22 | #include "libsigrok-internal.h" | |
23 | #include <glib.h> | |
24 | #include <libusb.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
27 | ||
a0e0bb41 | 28 | static const uint32_t scanopts[] = { |
99c76642 DE |
29 | SR_CONF_CONN, |
30 | }; | |
31 | ||
f254bc4b | 32 | static const uint32_t devopts[] = { |
5874e88d | 33 | SR_CONF_LOGIC_ANALYZER, |
5827f61b BV |
34 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, |
35 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
36 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
37 | SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET, | |
38 | SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
39 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
40 | SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
41 | SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
5874e88d DE |
42 | }; |
43 | ||
bbe7e48a BV |
44 | static const int32_t trigger_matches[] = { |
45 | SR_TRIGGER_ZERO, | |
46 | SR_TRIGGER_ONE, | |
47 | SR_TRIGGER_RISING, | |
48 | SR_TRIGGER_FALLING, | |
49 | }; | |
50 | ||
5874e88d DE |
51 | /* The hardware supports more samplerates than these, but these are the |
52 | * options hardcoded into the vendor's Windows GUI. | |
53 | */ | |
54 | static const uint64_t samplerates[] = { | |
55 | SR_MHZ(125), SR_MHZ(100), | |
56 | SR_MHZ(50), SR_MHZ(20), SR_MHZ(10), | |
57 | SR_MHZ(5), SR_MHZ(2), SR_MHZ(1), | |
58 | SR_KHZ(500), SR_KHZ(200), SR_KHZ(100), | |
59 | SR_KHZ(50), SR_KHZ(20), SR_KHZ(10), | |
60 | SR_KHZ(5), SR_KHZ(2), SR_KHZ(1), | |
61 | SR_HZ(500), SR_HZ(200), SR_HZ(100), | |
62 | }; | |
aeaad0b0 | 63 | |
e6e54bd2 DE |
64 | /* Names assigned to available trigger sources. Indices must match |
65 | * trigger_source enum values. | |
66 | */ | |
67 | static const char *const trigger_source_names[] = { "CH", "TRG" }; | |
68 | ||
69 | /* Names assigned to available trigger slope choices. Indices must | |
6358f0a9 | 70 | * match the signal_edge enum values. |
e6e54bd2 | 71 | */ |
6358f0a9 | 72 | static const char *const signal_edge_names[] = { "r", "f" }; |
e6e54bd2 | 73 | |
aeaad0b0 | 74 | SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info; |
5874e88d | 75 | static struct sr_dev_driver *const di = &sysclk_lwla_driver_info; |
aeaad0b0 | 76 | |
4f840ce9 | 77 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
aeaad0b0 DE |
78 | { |
79 | return std_init(sr_ctx, di, LOG_PREFIX); | |
80 | } | |
81 | ||
0af636be | 82 | static struct sr_dev_inst *dev_inst_new(void) |
43db3436 DE |
83 | { |
84 | struct sr_dev_inst *sdi; | |
85 | struct dev_context *devc; | |
5e23fcab ML |
86 | int i; |
87 | char name[8]; | |
43db3436 DE |
88 | |
89 | /* Allocate memory for our private driver context. */ | |
f57d8ffe | 90 | devc = g_malloc0(sizeof(struct dev_context)); |
43db3436 DE |
91 | |
92 | /* Register the device with libsigrok. */ | |
aac29cc1 | 93 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
94 | sdi->status = SR_ST_INACTIVE; |
95 | sdi->vendor = g_strdup(VENDOR_NAME); | |
96 | sdi->model = g_strdup(MODEL_NAME); | |
43db3436 | 97 | |
ba7dd8bb | 98 | /* Enable all channels to match the default channel configuration. */ |
43db3436 DE |
99 | devc->channel_mask = ALL_CHANNELS_MASK; |
100 | devc->samplerate = DEFAULT_SAMPLERATE; | |
101 | ||
102 | sdi->priv = devc; | |
5e23fcab ML |
103 | for (i = NUM_CHANNELS; i > 0; --i) { |
104 | /* The LWLA series simply number channels from CH1 to CHxx. */ | |
105 | g_snprintf(name, sizeof(name), "CH%d", i); | |
106 | sr_channel_new(sdi, i - 1, SR_CHANNEL_LOGIC, TRUE, name); | |
107 | } | |
43db3436 DE |
108 | |
109 | return sdi; | |
110 | } | |
111 | ||
4f840ce9 | 112 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
aeaad0b0 | 113 | { |
5874e88d | 114 | GSList *usb_devices, *devices, *node; |
aeaad0b0 | 115 | struct drv_context *drvc; |
5874e88d | 116 | struct sr_dev_inst *sdi; |
5874e88d | 117 | struct sr_usb_dev_inst *usb; |
7ebe9b9e DE |
118 | struct sr_config *src; |
119 | const char *conn; | |
aeaad0b0 | 120 | |
aeaad0b0 | 121 | drvc = di->priv; |
7ebe9b9e | 122 | conn = USB_VID_PID; |
5874e88d | 123 | |
7ebe9b9e DE |
124 | for (node = options; node != NULL; node = node->next) { |
125 | src = node->data; | |
126 | if (src->key == SR_CONF_CONN) { | |
127 | conn = g_variant_get_string(src->data, NULL); | |
128 | break; | |
129 | } | |
130 | } | |
131 | usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
132 | devices = NULL; | |
5874e88d DE |
133 | |
134 | for (node = usb_devices; node != NULL; node = node->next) { | |
135 | usb = node->data; | |
136 | ||
43db3436 | 137 | /* Create sigrok device instance. */ |
c79d4444 | 138 | sdi = dev_inst_new(); |
5874e88d | 139 | if (!sdi) { |
5874e88d DE |
140 | sr_usb_dev_inst_free(usb); |
141 | continue; | |
142 | } | |
143 | sdi->driver = di; | |
5874e88d DE |
144 | sdi->inst_type = SR_INST_USB; |
145 | sdi->conn = usb; | |
5874e88d | 146 | |
43db3436 | 147 | /* Register device instance with driver. */ |
5874e88d DE |
148 | drvc->instances = g_slist_append(drvc->instances, sdi); |
149 | devices = g_slist_append(devices, sdi); | |
150 | } | |
aeaad0b0 | 151 | |
5874e88d | 152 | g_slist_free(usb_devices); |
aeaad0b0 DE |
153 | |
154 | return devices; | |
155 | } | |
156 | ||
4f840ce9 | 157 | static GSList *dev_list(const struct sr_dev_driver *di) |
aeaad0b0 | 158 | { |
5874e88d DE |
159 | struct drv_context *drvc; |
160 | ||
161 | drvc = di->priv; | |
162 | ||
163 | return drvc->instances; | |
164 | } | |
165 | ||
166 | static void clear_dev_context(void *priv) | |
167 | { | |
168 | struct dev_context *devc; | |
169 | ||
170 | devc = priv; | |
171 | ||
172 | sr_dbg("Device context cleared."); | |
173 | ||
174 | lwla_free_acquisition_state(devc->acquisition); | |
175 | g_free(devc); | |
aeaad0b0 DE |
176 | } |
177 | ||
4f840ce9 | 178 | static int dev_clear(const struct sr_dev_driver *di) |
aeaad0b0 | 179 | { |
5874e88d | 180 | return std_dev_clear(di, &clear_dev_context); |
aeaad0b0 DE |
181 | } |
182 | ||
183 | static int dev_open(struct sr_dev_inst *sdi) | |
184 | { | |
5874e88d | 185 | struct drv_context *drvc; |
5874e88d DE |
186 | struct sr_usb_dev_inst *usb; |
187 | int ret; | |
aeaad0b0 | 188 | |
5874e88d | 189 | drvc = di->priv; |
aeaad0b0 | 190 | |
5874e88d DE |
191 | if (!drvc) { |
192 | sr_err("Driver was not initialized."); | |
193 | return SR_ERR; | |
194 | } | |
aeaad0b0 | 195 | |
43db3436 | 196 | usb = sdi->conn; |
5874e88d DE |
197 | |
198 | ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb); | |
199 | if (ret != SR_OK) | |
200 | return ret; | |
201 | ||
202 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
203 | if (ret < 0) { | |
204 | sr_err("Failed to claim interface: %s.", | |
205 | libusb_error_name(ret)); | |
206 | return SR_ERR; | |
207 | } | |
208 | ||
209 | sdi->status = SR_ST_INITIALIZING; | |
210 | ||
5874e88d DE |
211 | ret = lwla_init_device(sdi); |
212 | ||
213 | if (ret == SR_OK) | |
214 | sdi->status = SR_ST_ACTIVE; | |
215 | ||
216 | return ret; | |
aeaad0b0 DE |
217 | } |
218 | ||
219 | static int dev_close(struct sr_dev_inst *sdi) | |
220 | { | |
5874e88d | 221 | struct sr_usb_dev_inst *usb; |
5874e88d DE |
222 | |
223 | if (!di->priv) { | |
224 | sr_err("Driver was not initialized."); | |
225 | return SR_ERR; | |
226 | } | |
227 | ||
6358f0a9 | 228 | usb = sdi->conn; |
5874e88d DE |
229 | if (!usb->devhdl) |
230 | return SR_OK; | |
aeaad0b0 | 231 | |
6358f0a9 | 232 | sdi->status = SR_ST_INACTIVE; |
5874e88d | 233 | |
6358f0a9 DE |
234 | /* Trigger download of the shutdown bitstream. */ |
235 | if (lwla_set_clock_config(sdi) != SR_OK) | |
5874e88d DE |
236 | sr_err("Unable to shut down device."); |
237 | ||
238 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
239 | libusb_close(usb->devhdl); | |
240 | ||
241 | usb->devhdl = NULL; | |
aeaad0b0 DE |
242 | |
243 | return SR_OK; | |
244 | } | |
245 | ||
4f840ce9 | 246 | static int cleanup(const struct sr_dev_driver *di) |
aeaad0b0 | 247 | { |
4f840ce9 | 248 | return dev_clear(di); |
aeaad0b0 DE |
249 | } |
250 | ||
584560f1 | 251 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 252 | const struct sr_channel_group *cg) |
aeaad0b0 | 253 | { |
5874e88d | 254 | struct dev_context *devc; |
e6e54bd2 | 255 | size_t idx; |
aeaad0b0 | 256 | |
53b4680f | 257 | (void)cg; |
aeaad0b0 | 258 | |
5874e88d DE |
259 | if (!sdi) |
260 | return SR_ERR_ARG; | |
261 | ||
262 | devc = sdi->priv; | |
263 | ||
aeaad0b0 | 264 | switch (key) { |
5874e88d DE |
265 | case SR_CONF_SAMPLERATE: |
266 | *data = g_variant_new_uint64(devc->samplerate); | |
267 | break; | |
29d58767 DE |
268 | case SR_CONF_LIMIT_MSEC: |
269 | *data = g_variant_new_uint64(devc->limit_msec); | |
270 | break; | |
5874e88d DE |
271 | case SR_CONF_LIMIT_SAMPLES: |
272 | *data = g_variant_new_uint64(devc->limit_samples); | |
273 | break; | |
274 | case SR_CONF_EXTERNAL_CLOCK: | |
6358f0a9 DE |
275 | *data = g_variant_new_boolean(devc->cfg_clock_source |
276 | == CLOCK_EXT_CLK); | |
277 | break; | |
278 | case SR_CONF_CLOCK_EDGE: | |
279 | idx = devc->cfg_clock_edge; | |
280 | if (idx >= G_N_ELEMENTS(signal_edge_names)) | |
281 | return SR_ERR_BUG; | |
282 | *data = g_variant_new_string(signal_edge_names[idx]); | |
5874e88d | 283 | break; |
e6e54bd2 DE |
284 | case SR_CONF_TRIGGER_SOURCE: |
285 | idx = devc->cfg_trigger_source; | |
286 | if (idx >= G_N_ELEMENTS(trigger_source_names)) | |
287 | return SR_ERR_BUG; | |
288 | *data = g_variant_new_string(trigger_source_names[idx]); | |
289 | break; | |
290 | case SR_CONF_TRIGGER_SLOPE: | |
291 | idx = devc->cfg_trigger_slope; | |
6358f0a9 | 292 | if (idx >= G_N_ELEMENTS(signal_edge_names)) |
e6e54bd2 | 293 | return SR_ERR_BUG; |
6358f0a9 | 294 | *data = g_variant_new_string(signal_edge_names[idx]); |
e6e54bd2 | 295 | break; |
aeaad0b0 DE |
296 | default: |
297 | return SR_ERR_NA; | |
298 | } | |
299 | ||
5874e88d | 300 | return SR_OK; |
aeaad0b0 DE |
301 | } |
302 | ||
e6e54bd2 DE |
303 | /* Helper for mapping a string-typed configuration value to an index |
304 | * within a table of possible values. | |
305 | */ | |
306 | static int lookup_index(GVariant *value, const char *const *table, int len) | |
307 | { | |
308 | const char *entry; | |
309 | int i; | |
310 | ||
311 | entry = g_variant_get_string(value, NULL); | |
312 | if (!entry) | |
313 | return -1; | |
314 | ||
315 | /* Linear search is fine for very small tables. */ | |
316 | for (i = 0; i < len; ++i) { | |
317 | if (strcmp(entry, table[i]) == 0) | |
318 | return i; | |
319 | } | |
320 | return -1; | |
321 | } | |
322 | ||
584560f1 | 323 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 324 | const struct sr_channel_group *cg) |
aeaad0b0 | 325 | { |
29d58767 | 326 | uint64_t value; |
5874e88d | 327 | struct dev_context *devc; |
e6e54bd2 | 328 | int idx; |
aeaad0b0 | 329 | |
53b4680f | 330 | (void)cg; |
aeaad0b0 | 331 | |
5874e88d DE |
332 | devc = sdi->priv; |
333 | if (!devc) | |
aeaad0b0 DE |
334 | return SR_ERR_DEV_CLOSED; |
335 | ||
aeaad0b0 | 336 | switch (key) { |
5874e88d | 337 | case SR_CONF_SAMPLERATE: |
29d58767 | 338 | value = g_variant_get_uint64(data); |
29d58767 DE |
339 | if (value < samplerates[G_N_ELEMENTS(samplerates) - 1] |
340 | || value > samplerates[0]) | |
5874e88d | 341 | return SR_ERR_SAMPLERATE; |
29d58767 DE |
342 | devc->samplerate = value; |
343 | break; | |
344 | case SR_CONF_LIMIT_MSEC: | |
345 | value = g_variant_get_uint64(data); | |
346 | if (value > MAX_LIMIT_MSEC) | |
347 | return SR_ERR_ARG; | |
348 | devc->limit_msec = value; | |
5874e88d DE |
349 | break; |
350 | case SR_CONF_LIMIT_SAMPLES: | |
29d58767 DE |
351 | value = g_variant_get_uint64(data); |
352 | if (value > MAX_LIMIT_SAMPLES) | |
353 | return SR_ERR_ARG; | |
354 | devc->limit_samples = value; | |
5874e88d DE |
355 | break; |
356 | case SR_CONF_EXTERNAL_CLOCK: | |
6358f0a9 DE |
357 | devc->cfg_clock_source = (g_variant_get_boolean(data)) |
358 | ? CLOCK_EXT_CLK : CLOCK_INTERNAL; | |
359 | break; | |
360 | case SR_CONF_CLOCK_EDGE: | |
361 | idx = lookup_index(data, signal_edge_names, | |
362 | G_N_ELEMENTS(signal_edge_names)); | |
363 | if (idx < 0) | |
364 | return SR_ERR_ARG; | |
365 | devc->cfg_clock_edge = idx; | |
5874e88d | 366 | break; |
e6e54bd2 DE |
367 | case SR_CONF_TRIGGER_SOURCE: |
368 | idx = lookup_index(data, trigger_source_names, | |
369 | G_N_ELEMENTS(trigger_source_names)); | |
370 | if (idx < 0) | |
371 | return SR_ERR_ARG; | |
372 | devc->cfg_trigger_source = idx; | |
373 | break; | |
374 | case SR_CONF_TRIGGER_SLOPE: | |
6358f0a9 DE |
375 | idx = lookup_index(data, signal_edge_names, |
376 | G_N_ELEMENTS(signal_edge_names)); | |
e6e54bd2 DE |
377 | if (idx < 0) |
378 | return SR_ERR_ARG; | |
379 | devc->cfg_trigger_slope = idx; | |
380 | break; | |
aeaad0b0 | 381 | default: |
5874e88d | 382 | return SR_ERR_NA; |
aeaad0b0 DE |
383 | } |
384 | ||
5874e88d | 385 | return SR_OK; |
aeaad0b0 DE |
386 | } |
387 | ||
f3ca73ed | 388 | static int config_channel_set(const struct sr_dev_inst *sdi, |
bbe7e48a | 389 | struct sr_channel *ch, unsigned int changes) |
43db3436 | 390 | { |
ba7dd8bb | 391 | uint64_t channel_bit; |
43db3436 DE |
392 | struct dev_context *devc; |
393 | ||
394 | devc = sdi->priv; | |
395 | if (!devc) | |
396 | return SR_ERR_DEV_CLOSED; | |
397 | ||
3f239f08 | 398 | if (ch->index < 0 || ch->index >= NUM_CHANNELS) { |
ba7dd8bb | 399 | sr_err("Channel index %d out of range.", ch->index); |
43db3436 DE |
400 | return SR_ERR_BUG; |
401 | } | |
ba7dd8bb | 402 | channel_bit = (uint64_t)1 << ch->index; |
43db3436 | 403 | |
3f239f08 | 404 | if ((changes & SR_CHANNEL_SET_ENABLED) != 0) { |
ba7dd8bb UH |
405 | /* Enable or disable input channel for this channel. */ |
406 | if (ch->enabled) | |
407 | devc->channel_mask |= channel_bit; | |
43db3436 | 408 | else |
ba7dd8bb | 409 | devc->channel_mask &= ~channel_bit; |
43db3436 DE |
410 | } |
411 | ||
43db3436 DE |
412 | return SR_OK; |
413 | } | |
414 | ||
ee38c8ba DE |
415 | static int config_commit(const struct sr_dev_inst *sdi) |
416 | { | |
417 | if (sdi->status != SR_ST_ACTIVE) { | |
418 | sr_err("Device not ready (status %d).", (int)sdi->status); | |
419 | return SR_ERR; | |
420 | } | |
421 | ||
6358f0a9 | 422 | return lwla_set_clock_config(sdi); |
ee38c8ba DE |
423 | } |
424 | ||
584560f1 | 425 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 426 | const struct sr_channel_group *cg) |
aeaad0b0 | 427 | { |
5874e88d DE |
428 | GVariant *gvar; |
429 | GVariantBuilder gvb; | |
aeaad0b0 DE |
430 | |
431 | (void)sdi; | |
53b4680f | 432 | (void)cg; |
aeaad0b0 | 433 | |
aeaad0b0 | 434 | switch (key) { |
99c76642 | 435 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 436 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 437 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
99c76642 | 438 | break; |
5874e88d | 439 | case SR_CONF_DEVICE_OPTIONS: |
584560f1 | 440 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 441 | devopts, G_N_ELEMENTS(devopts), sizeof(uint32_t)); |
5874e88d DE |
442 | break; |
443 | case SR_CONF_SAMPLERATE: | |
444 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
445 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
99c76642 | 446 | samplerates, G_N_ELEMENTS(samplerates), |
5874e88d DE |
447 | sizeof(uint64_t)); |
448 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
449 | *data = g_variant_builder_end(&gvb); | |
450 | break; | |
bbe7e48a BV |
451 | case SR_CONF_TRIGGER_MATCH: |
452 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
453 | trigger_matches, ARRAY_SIZE(trigger_matches), | |
454 | sizeof(int32_t)); | |
5874e88d | 455 | break; |
e6e54bd2 DE |
456 | case SR_CONF_TRIGGER_SOURCE: |
457 | *data = g_variant_new_strv(trigger_source_names, | |
458 | G_N_ELEMENTS(trigger_source_names)); | |
459 | break; | |
460 | case SR_CONF_TRIGGER_SLOPE: | |
6358f0a9 DE |
461 | case SR_CONF_CLOCK_EDGE: |
462 | *data = g_variant_new_strv(signal_edge_names, | |
463 | G_N_ELEMENTS(signal_edge_names)); | |
e6e54bd2 | 464 | break; |
aeaad0b0 DE |
465 | default: |
466 | return SR_ERR_NA; | |
467 | } | |
468 | ||
5874e88d | 469 | return SR_OK; |
aeaad0b0 DE |
470 | } |
471 | ||
5874e88d DE |
472 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
473 | { | |
474 | struct drv_context *drvc; | |
475 | struct dev_context *devc; | |
476 | struct acquisition_state *acq; | |
477 | int ret; | |
478 | ||
aeaad0b0 DE |
479 | (void)cb_data; |
480 | ||
481 | if (sdi->status != SR_ST_ACTIVE) | |
482 | return SR_ERR_DEV_CLOSED; | |
483 | ||
5874e88d DE |
484 | devc = sdi->priv; |
485 | drvc = di->priv; | |
486 | ||
487 | if (devc->acquisition) { | |
488 | sr_err("Acquisition still in progress?"); | |
489 | return SR_ERR; | |
490 | } | |
491 | acq = lwla_alloc_acquisition_state(); | |
492 | if (!acq) | |
493 | return SR_ERR_MALLOC; | |
494 | ||
495 | devc->stopping_in_progress = FALSE; | |
496 | devc->transfer_error = FALSE; | |
497 | ||
5874e88d DE |
498 | sr_info("Starting acquisition."); |
499 | ||
500 | devc->acquisition = acq; | |
bbe7e48a | 501 | lwla_convert_trigger(sdi); |
5874e88d DE |
502 | ret = lwla_setup_acquisition(sdi); |
503 | if (ret != SR_OK) { | |
a84f6ad3 | 504 | sr_err("Failed to set up acquisition."); |
5874e88d DE |
505 | devc->acquisition = NULL; |
506 | lwla_free_acquisition_state(acq); | |
507 | return ret; | |
508 | } | |
509 | ||
510 | ret = lwla_start_acquisition(sdi); | |
511 | if (ret != SR_OK) { | |
a84f6ad3 | 512 | sr_err("Failed to start acquisition."); |
5874e88d DE |
513 | devc->acquisition = NULL; |
514 | lwla_free_acquisition_state(acq); | |
515 | return ret; | |
516 | } | |
102f1239 | 517 | usb_source_add(sdi->session, drvc->sr_ctx, 100, &lwla_receive_data, |
5874e88d DE |
518 | (struct sr_dev_inst *)sdi); |
519 | ||
520 | sr_info("Waiting for data."); | |
521 | ||
522 | /* Send header packet to the session bus. */ | |
523 | std_session_send_df_header(sdi, LOG_PREFIX); | |
aeaad0b0 DE |
524 | |
525 | return SR_OK; | |
526 | } | |
527 | ||
528 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
529 | { | |
530 | (void)cb_data; | |
531 | ||
532 | if (sdi->status != SR_ST_ACTIVE) | |
533 | return SR_ERR_DEV_CLOSED; | |
534 | ||
5874e88d DE |
535 | sr_dbg("Stopping acquisition."); |
536 | ||
537 | sdi->status = SR_ST_STOPPING; | |
aeaad0b0 DE |
538 | |
539 | return SR_OK; | |
540 | } | |
541 | ||
542 | SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info = { | |
543 | .name = "sysclk-lwla", | |
5874e88d | 544 | .longname = "SysClk LWLA series", |
aeaad0b0 DE |
545 | .api_version = 1, |
546 | .init = init, | |
547 | .cleanup = cleanup, | |
548 | .scan = scan, | |
549 | .dev_list = dev_list, | |
550 | .dev_clear = dev_clear, | |
551 | .config_get = config_get, | |
552 | .config_set = config_set, | |
f3ca73ed | 553 | .config_channel_set = config_channel_set, |
ee38c8ba | 554 | .config_commit = config_commit, |
aeaad0b0 DE |
555 | .config_list = config_list, |
556 | .dev_open = dev_open, | |
557 | .dev_close = dev_close, | |
558 | .dev_acquisition_start = dev_acquisition_start, | |
559 | .dev_acquisition_stop = dev_acquisition_stop, | |
560 | .priv = NULL, | |
561 | }; |